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Diffstat (limited to 'drivers/media/dvb/frontends/isl6423.c')
-rw-r--r--drivers/media/dvb/frontends/isl6423.c308
1 files changed, 0 insertions, 308 deletions
diff --git a/drivers/media/dvb/frontends/isl6423.c b/drivers/media/dvb/frontends/isl6423.c
deleted file mode 100644
index dca5bebfeeb5..000000000000
--- a/drivers/media/dvb/frontends/isl6423.c
+++ /dev/null
@@ -1,308 +0,0 @@
-/*
- Intersil ISL6423 SEC and LNB Power supply controller
-
- Copyright (C) Manu Abraham <abraham.manu@gmail.com>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-
-#include "dvb_frontend.h"
-#include "isl6423.h"
-
-static unsigned int verbose;
-module_param(verbose, int, 0644);
-MODULE_PARM_DESC(verbose, "Set Verbosity level");
-
-#define FE_ERROR 0
-#define FE_NOTICE 1
-#define FE_INFO 2
-#define FE_DEBUG 3
-#define FE_DEBUGREG 4
-
-#define dprintk(__y, __z, format, arg...) do { \
- if (__z) { \
- if ((verbose > FE_ERROR) && (verbose > __y)) \
- printk(KERN_ERR "%s: " format "\n", __func__ , ##arg); \
- else if ((verbose > FE_NOTICE) && (verbose > __y)) \
- printk(KERN_NOTICE "%s: " format "\n", __func__ , ##arg); \
- else if ((verbose > FE_INFO) && (verbose > __y)) \
- printk(KERN_INFO "%s: " format "\n", __func__ , ##arg); \
- else if ((verbose > FE_DEBUG) && (verbose > __y)) \
- printk(KERN_DEBUG "%s: " format "\n", __func__ , ##arg); \
- } else { \
- if (verbose > __y) \
- printk(format, ##arg); \
- } \
-} while (0)
-
-struct isl6423_dev {
- const struct isl6423_config *config;
- struct i2c_adapter *i2c;
-
- u8 reg_3;
- u8 reg_4;
-
- unsigned int verbose;
-};
-
-static int isl6423_write(struct isl6423_dev *isl6423, u8 reg)
-{
- struct i2c_adapter *i2c = isl6423->i2c;
- u8 addr = isl6423->config->addr;
- int err = 0;
-
- struct i2c_msg msg = { .addr = addr, .flags = 0, .buf = &reg, .len = 1 };
-
- dprintk(FE_DEBUG, 1, "write reg %02X", reg);
- err = i2c_transfer(i2c, &msg, 1);
- if (err < 0)
- goto exit;
- return 0;
-
-exit:
- dprintk(FE_ERROR, 1, "I/O error <%d>", err);
- return err;
-}
-
-static int isl6423_set_modulation(struct dvb_frontend *fe)
-{
- struct isl6423_dev *isl6423 = (struct isl6423_dev *) fe->sec_priv;
- const struct isl6423_config *config = isl6423->config;
- int err = 0;
- u8 reg_2 = 0;
-
- reg_2 = 0x01 << 5;
-
- if (config->mod_extern)
- reg_2 |= (1 << 3);
- else
- reg_2 |= (1 << 4);
-
- err = isl6423_write(isl6423, reg_2);
- if (err < 0)
- goto exit;
- return 0;
-
-exit:
- dprintk(FE_ERROR, 1, "I/O error <%d>", err);
- return err;
-}
-
-static int isl6423_voltage_boost(struct dvb_frontend *fe, long arg)
-{
- struct isl6423_dev *isl6423 = (struct isl6423_dev *) fe->sec_priv;
- u8 reg_3 = isl6423->reg_3;
- u8 reg_4 = isl6423->reg_4;
- int err = 0;
-
- if (arg) {
- /* EN = 1, VSPEN = 1, VBOT = 1 */
- reg_4 |= (1 << 4);
- reg_4 |= 0x1;
- reg_3 |= (1 << 3);
- } else {
- /* EN = 1, VSPEN = 1, VBOT = 0 */
- reg_4 |= (1 << 4);
- reg_4 &= ~0x1;
- reg_3 |= (1 << 3);
- }
- err = isl6423_write(isl6423, reg_3);
- if (err < 0)
- goto exit;
-
- err = isl6423_write(isl6423, reg_4);
- if (err < 0)
- goto exit;
-
- isl6423->reg_3 = reg_3;
- isl6423->reg_4 = reg_4;
-
- return 0;
-exit:
- dprintk(FE_ERROR, 1, "I/O error <%d>", err);
- return err;
-}
-
-
-static int isl6423_set_voltage(struct dvb_frontend *fe,
- enum fe_sec_voltage voltage)
-{
- struct isl6423_dev *isl6423 = (struct isl6423_dev *) fe->sec_priv;
- u8 reg_3 = isl6423->reg_3;
- u8 reg_4 = isl6423->reg_4;
- int err = 0;
-
- switch (voltage) {
- case SEC_VOLTAGE_OFF:
- /* EN = 0 */
- reg_4 &= ~(1 << 4);
- break;
-
- case SEC_VOLTAGE_13:
- /* EN = 1, VSPEN = 1, VTOP = 0, VBOT = 0 */
- reg_4 |= (1 << 4);
- reg_4 &= ~0x3;
- reg_3 |= (1 << 3);
- break;
-
- case SEC_VOLTAGE_18:
- /* EN = 1, VSPEN = 1, VTOP = 1, VBOT = 0 */
- reg_4 |= (1 << 4);
- reg_4 |= 0x2;
- reg_4 &= ~0x1;
- reg_3 |= (1 << 3);
- break;
-
- default:
- break;
- }
- err = isl6423_write(isl6423, reg_3);
- if (err < 0)
- goto exit;
-
- err = isl6423_write(isl6423, reg_4);
- if (err < 0)
- goto exit;
-
- isl6423->reg_3 = reg_3;
- isl6423->reg_4 = reg_4;
-
- return 0;
-exit:
- dprintk(FE_ERROR, 1, "I/O error <%d>", err);
- return err;
-}
-
-static int isl6423_set_current(struct dvb_frontend *fe)
-{
- struct isl6423_dev *isl6423 = (struct isl6423_dev *) fe->sec_priv;
- u8 reg_3 = isl6423->reg_3;
- const struct isl6423_config *config = isl6423->config;
- int err = 0;
-
- switch (config->current_max) {
- case SEC_CURRENT_275m:
- /* 275mA */
- /* ISELH = 0, ISELL = 0 */
- reg_3 &= ~0x3;
- break;
-
- case SEC_CURRENT_515m:
- /* 515mA */
- /* ISELH = 0, ISELL = 1 */
- reg_3 &= ~0x2;
- reg_3 |= 0x1;
- break;
-
- case SEC_CURRENT_635m:
- /* 635mA */
- /* ISELH = 1, ISELL = 0 */
- reg_3 &= ~0x1;
- reg_3 |= 0x2;
- break;
-
- case SEC_CURRENT_800m:
- /* 800mA */
- /* ISELH = 1, ISELL = 1 */
- reg_3 |= 0x3;
- break;
- }
-
- err = isl6423_write(isl6423, reg_3);
- if (err < 0)
- goto exit;
-
- switch (config->curlim) {
- case SEC_CURRENT_LIM_ON:
- /* DCL = 0 */
- reg_3 &= ~0x10;
- break;
-
- case SEC_CURRENT_LIM_OFF:
- /* DCL = 1 */
- reg_3 |= 0x10;
- break;
- }
-
- err = isl6423_write(isl6423, reg_3);
- if (err < 0)
- goto exit;
-
- isl6423->reg_3 = reg_3;
-
- return 0;
-exit:
- dprintk(FE_ERROR, 1, "I/O error <%d>", err);
- return err;
-}
-
-static void isl6423_release(struct dvb_frontend *fe)
-{
- isl6423_set_voltage(fe, SEC_VOLTAGE_OFF);
-
- kfree(fe->sec_priv);
- fe->sec_priv = NULL;
-}
-
-struct dvb_frontend *isl6423_attach(struct dvb_frontend *fe,
- struct i2c_adapter *i2c,
- const struct isl6423_config *config)
-{
- struct isl6423_dev *isl6423;
-
- isl6423 = kzalloc(sizeof(struct isl6423_dev), GFP_KERNEL);
- if (!isl6423)
- return NULL;
-
- isl6423->config = config;
- isl6423->i2c = i2c;
- fe->sec_priv = isl6423;
-
- /* SR3H = 0, SR3M = 1, SR3L = 0 */
- isl6423->reg_3 = 0x02 << 5;
- /* SR4H = 0, SR4M = 1, SR4L = 1 */
- isl6423->reg_4 = 0x03 << 5;
-
- if (isl6423_set_current(fe))
- goto exit;
-
- if (isl6423_set_modulation(fe))
- goto exit;
-
- fe->ops.release_sec = isl6423_release;
- fe->ops.set_voltage = isl6423_set_voltage;
- fe->ops.enable_high_lnb_voltage = isl6423_voltage_boost;
- isl6423->verbose = verbose;
-
- return fe;
-
-exit:
- kfree(isl6423);
- fe->sec_priv = NULL;
- return NULL;
-}
-EXPORT_SYMBOL(isl6423_attach);
-
-MODULE_DESCRIPTION("ISL6423 SEC");
-MODULE_AUTHOR("Manu Abraham");
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-22 03:12:39 +0000